natPlainDatagramSocket.cc: removed #include <ws2tcpip.h>; the mingw header is broken (conflicts with itself).

2002-09-14  Adam Megacz <adam@xwt.org>

        * java/net/natPlainDatagramSocket.cc: removed #include
        <ws2tcpip.h>; the mingw header is broken (conflicts with itself).
        * include/win32.h: included definition for IP_TOS to satisfy
        natPlainDatagramSocket.cc

From-SVN: r57151